Why engine surges on 1997 Mercury Villager?

Engine surges on a 1997 Mercury Villager can be attributed to several factors, including a malfunctioning mass air flow sensor, vacuum leaks, or issues with the fuel delivery system, such as a clogged fuel filter or failing fuel pump. Additionally, problems with the ignition system, such as worn spark plugs or faulty ignition coils, can also cause irregular engine performance. It’s important to diagnose the specific issue using diagnostic tools for accurate troubleshooting. Regular maintenance can help prevent such problems.